ISO 6191:1981
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Light olefins for industrial use Determination of traces of water Karl Fischer method
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
20-02-2019
English, French
01-08-1981
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Describes a method applicable to products having water contents between 10 and 100 mg/kg. Specifies the manner of applications of the Karl-Fischer method, whose principle and chemical reaction are given in ISO 760 which should also be used for higher water contents as sampling is not valid when there is a risk that condensation of water may occur. The principle consists in absorbing the traces of water in a test portion in a solvent to which a sufficient quantitty of Karl-Fischer reagent has been added so that there is neither an excess of water nor an excess of the Karl Fischer reagent, when the solvent is said to be at the equivalence point.
| DocumentType |
Standard
|
| Pages |
8
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| Supersedes |
| Standards | Relationship |
| NBN T 04 501 : 1985 | Identical |
| ISO 3165:1976 | Sampling of chemical products for industrial use — Safety in sampling |
| ISO 760:1978 | Determination of water Karl Fischer method (General method) |
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